Ayres, Frank, <br/><br/>
Schaum's outline of theory and problems of plane and spherical trigonometry 
by Frank Ayres, jr. 
 - New York  McGraw-Hill Book  1954. 
 - 207 pages :  illustration ;  28 cm. 
<br/><br/> Cover title: Theory and problems of plane and spherical trigonometry.  Includes index. 
<br/><br/><label>ISBN: </label>0070026513 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry